1 /*
2 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
3 *
4 * This software is open source.
5 * See the bottom of this file for the licence.
6 */
7
8 package org.dom4j.util;
9
10 import junit.framework.Test;
11 import junit.framework.TestSuite;
12 import junit.framework.TestCase;
13
14 import java.util.HashMap;
15 import java.util.Map;
16
17 /***
18 * PerThreadSingleton Tester.
19 *
20 * @author ddlucas
21 * @since
22 *
23 * <pre>
24 * 01 / 05 / 2005
25 * </pre>
26 *
27 * @version 1.0
28 */
29 public class SimpleSingletonTest extends TestCase {
30 public SimpleSingletonTest(String name) {
31 super(name);
32 }
33
34 private static SingletonStrategy singleton;
35
36 private static Object reference;
37
38 public void setUp() throws Exception {
39 super.setUp();
40 if (singleton == null) {
41 singleton = new PerThreadSingleton();
42 singleton.setSingletonClassName(HashMap.class.getName());
43 }
44 }
45
46 public void tearDown() throws Exception {
47 super.tearDown();
48 }
49
50 public void testFirstInstance() throws Exception {
51 Map map = (Map) singleton.instance();
52 String expected = null;
53 String actual = (String) map.get("Test");
54 assertEquals("testInstance", expected, actual);
55
56 expected = "new value";
57 map.put("Test", expected);
58
59 map = (Map) singleton.instance();
60 reference = map;
61 actual = (String) map.get("Test");
62 assertEquals("testFirstInstance", expected, actual);
63 }
64
65 public void testSecondInstance() throws Exception {
66 Map map = (Map) singleton.instance();
67 assertEquals("testSecondInstance reference", reference, map);
68 String actual = (String) map.get("Test");
69 String expected = "new value";
70 assertEquals("testInstance", expected, actual);
71 }
72
73 public static Test suite() {
74 TestSuite suite = new TestSuite();
75 suite.addTest(TestSuite.createTest(SimpleSingletonTest.class,
76 "testFirstInstance"));
77 suite.addTest(TestSuite.createTest(SimpleSingletonTest.class,
78 "testSecondInstance"));
79 return suite;
80 }
81 }
82
83 /*
84 * Redistribution and use of this software and associated documentation
85 * ("Software"), with or without modification, are permitted provided that the
86 * following conditions are met:
87 *
88 * 1. Redistributions of source code must retain copyright statements and
89 * notices. Redistributions must also contain a copy of this document.
90 *
91 * 2. Redistributions in binary form must reproduce the above copyright notice,
92 * this list of conditions and the following disclaimer in the documentation
93 * and/or other materials provided with the distribution.
94 *
95 * 3. The name "DOM4J" must not be used to endorse or promote products derived
96 * from this Software without prior written permission of MetaStuff, Ltd. For
97 * written permission, please contact dom4j-info@metastuff.com.
98 *
99 * 4. Products derived from this Software may not be called "DOM4J" nor may
100 * "DOM4J" appear in their names without prior written permission of MetaStuff,
101 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
102 *
103 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
104 *
105 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
106 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
107 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
108 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
109 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
110 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
111 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
112 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
113 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
114 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
115 * POSSIBILITY OF SUCH DAMAGE.
116 *
117 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
118 */
119